If a line's slope is
, the slope of the perpendicular line is
in this case, the given line has a slope 4, which is 4/1, so the perpendicular line has a slope/gradient
The square root of -18 is 3i√
2
Hope this helps
From the very beginning, each door had a 1/3 probability chance to be holding the grand prize. And the fact that she saw the consolation prize behind one of them does not change this probability.
From the beginning, all doors had equal chances.
Based on this, the answer to your question would be:
She could either accept or not accept the host's offer <span>because the probabilities of the three doors were equal from the beginning.</span>
6y-10=y+25
subtract y from both sides
5y-10=25
add 10 to both sides
5y=35
divide both sides by 5
y=7
